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  • The SaveAs method is configured to require a rooted path, and the path <blah> is not rooted.

    - by Jen
    OK I've seen a few people with this issue - but I'm already using a file path, not a relative path. My code works fine on my PC, but when another developer goes to upload an image they get this error. I thought it was a security permission thing on the folder - but the system account has full access to the folder (though I get confused about how to test which account the application is running under). Also usually running locally doesn't often give you too many security issues :) A code snippet: Guid fileIdentifier = Guid.NewGuid(); CurrentUserInfo currentUser = CMSContext.CurrentUser; string identifier = currentUser.UserName.Replace(" ", "") + "_" + fileIdentifier.ToString(); string fileName1 = System.IO.Path.GetFileName(fileUpload.PostedFile.FileName); string Name = System.IO.Path.GetFileNameWithoutExtension(fileName1); string renamedFile = fileName1.Replace(Name, identifier); string path = ConfigurationManager.AppSettings["MemberPhotoRepository"]; String filenameToWriteTo = path + currentUser.UserName.Replace(" ", "") + fileName1; fileUpload.PostedFile.SaveAs(filenameToWriteTo); Where my config settings value is: Again this works fine on my PC! (And I checked the other person has the folder on their PC). Any suggestions would be appreciated - thanks :)

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  • .NET: Can I use DataContractJsonSerializer to serialize to a JSON associative array?

    - by Cheeso
    When using DataContractJsonSerializer to serialize a dictionary, like so: [CollectionDataContract] public class Clazz : Dictionary<String,String> {} .... var c1 = new Clazz(); c1["Red"] = "Rosso"; c1["Blue"] = "Blu"; c1["Green"] = "Verde"; Serializing c1 with this code: var dcjs = new DataContractJsonSerializer(c1.GetType()); var json = new Func<String>(() => { using (var ms = new System.IO.MemoryStream()) { dcjs.WriteObject(ms, c1); return Encoding.ASCII.GetString(ms.ToArray()); } })(); ...produces this JSON: [{"Key":"Red","Value":"Rosso"}, {"Key":"Blue","Value":"Blu"}, {"Key":"Green","Value":"Verde"}] But, this isn't a Javascript associative array. If I do the corresponding thing in javascript: produce a dictionary and then serialize it, like so: var a = {}; a["Red"] = "Rosso"; a["Blue"] = "Blu"; a["Green"] = "Verde"; // use utility class from http://www.JSON.org/json2.js var json = JSON.stringify(a); The result is: {"Red":"Rosso","Blue":"Blu","Green":"Verde"} How can I get DCJS to produce or consume a serialized string for a dictionary, that is compatible with JSON2.js ? I know about JavaScriptSerializer from ASP.NET. Not sure if it's very WCF friendly. Does it respect DataMember, DataContract attributes?

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  • Interpret Objective C scripts at runtime on iPhone?

    - by Brad Parks
    Is there anyway to load an objective c script at runtime, and run it against the classes/methods/objects/functions in the current iPhone app? The reason i ask is that I've been playing around with iPhone wax, a lua interpreter that can be embedded in an iPhone app, and it works very nicely, in the sense that any object/method/function that's publically available in your Objective C code is automatically bridged, and available in lua. This allows you to rapidly prototype applications by simply making the core of your app be lua files that are in the users documents directory. Just reload the app, and you can test out changes to your lua files without needing to rebuild the app in XCode - a big time saver! But, with Apples recent 3.1.3 SDK stuff, it got me thinking that the safest approach for doing this type of rapid prototypeing would be if you could use Objective C as the interpreted code... That way, worst case scenario, you could just compile it into your app before your release, instead. I have heard that the lua source can be compiled to byte code, and linked in at build time, but I think the ultimate safe thing would be if the scripted source was in objective c, not lua. This leads me to wondering (i've searched, but come up with nothing) if there are any examples on how to embed an Objective C Interpreter in an iPhone app? This would allow you to rapidly prototype your app against the current classes that are built into your binary, and, when your about to deploy your app, instead of running the classes through the in app interpreter, you compile them in instead.

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  • Manual (Dynamic) LINQ subquery using IN clause

    - by immortalali-msn-com
    Hi Everyone, I want to query the DB through LINQ writing manual SQL, my linq method is: var q = db.TableView.Where(sqlAfterWhere); returnValue = q.Count(); this method queries well if the value passed to variable "sqlAfterWhere" is: (this variable is String type) it.Name = 'xyz' but what if i want to use IN clause, using a sub query. (i need to use 'it' before every column name in the above query to work), i cant use 'it' before the sub query columns as its a separate query, so what should i do, if i dont use any thing, and use column names directly it gives error saying " could not be resolved" where is my column names with out 'it' at the begining. So the query not working is: (this is a string passed to the variable above): it.Name IN (SELECT Name FROM TableName WHERE Address LIKE '%SomeAddress%') the errors come out as: Name could not be resolved Address could not be resolved The exact error is: "'Name' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly., near simple identifier, line 6, column 25." Same error for "Address as well if i use 'it.' before these columns it gives error as: "The element type 'Edm.Int32' and the CollectionType 'Transient.collection[Transient.rowtype(GroupID,Edm.Int32(Nullable=True,DefaultValue=))]' are not compatible. The IN expression only supports entity, primitive, and reference types. , near WHERE predicate, line 6, column 14." Thanks for the help

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  • Managing Dependency Hell with WiX and C#

    - by Tom the Junglist
    We are on the eve of product launch, and at the last minute I am being bombarded with crash reports that appear to be related to our installer, which is a WiX3 project with separate outputs for x86 and x64 builds. These have been an ongoing problem that I always thought were fixed, only to find out that they were still lurking. The product itself is a collection of binaries that communicate with each other via .Net remoting, including a Windows Service and a small COM component that is loaded as an addon in another app. The service runs as SYSTEM, the COM piece runs in a low-rights context, while the other pieces run in normal user contexts. Other pieces include an third-party COM object library DLL and a shared DLL with the .net Remoting interfaces. I've observed flat-out weird behavior with MSI, particularly on version upgrades. Between MS' anal strong-name implementation (specifically, the exact version check before loading a given assembly), a documented WiX/MSI bug that sees critical files erased on upgrades (essentially, if a file in the upgrade MSI has the same version number as the existing install, that file is deleted), and having to work around Wow64 virtualization (x86 MSI can only write to registry/HD locations via Wow64, yet x64 MSIs cannot run on x86 computers...), I am about ready to trash the whole thing and port it over to a different install system. What I am looking for on tips + tricks, techniques, or suggestions on how to properly do things so that I am not fighting with Windows Installer's twisted sense of logic. I am tired of fighting with WiX/MSI/Windows Installer. All it needs to do is place files and registry keys where I tell it to, upgrade them when appropriate, and don't delete anything until the user uninstalls. Instead, dependencies are deleted willy-nilly, bringing up a whole bunch of uncatchable exceptions (can't wrap a try{} block around function declarations) and GPF'ing the whole app. I am particularly interested in 'best practices' and examples regarding shared and dependency DLLs, and any tips on making sure if a file needs to go to GAC, that it actually goes to the GAC and stays there until it is appropriate to remove it. Thanks! Tom

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  • Java (JSP/Servlet): equivalent of getServletContext() from inside a .jsp

    - by Webinator
    How should I access the ServletContext from a .jsp? For example, how can I call the getRealPath method from inside a .jsp. Here's a Servlet, which works fine: protected void doGet( HttpServletRequest req, HttpServletResponse resp ) throws ServletException, IOException { resp.setContentType( "text/html; charset=UTF-8" ); final PrintWriter pw = resp.getWriter(); pw.print( "<html><body>" ); pw.print( getServletContext().getRealPath( "text/en" ) ); pw.print( "</body></html>" ); pw.flush(); pw.close(); } Now I'm looking for the exact line I'm supposed to insert in the following .jsp to do exactly the same thing as the servlet above is doing. <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <body> ... // What should I insert here </body> </html>

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  • What are some good/reputable/widely-used libraries written in VB.NET?

    - by Dan Tao
    Generally speaking, when VB.NET and C# are compared, there is a lot of strong support for C#, accompanied by some bashing of VB.NET until a respected developer comes along and acts as The Voice Of Reason, pointing out that while VB prior to VB.NET had its fair share of issues, VB.NET is really a very strong, fully OOP language that is, feature-wise, right about on par with C# (with the exception of certain things like a full-bodied lamba syntax [pre-VB10] or the yield keyword, as many C# faithfuls are quick to point out). I myself, having written plenty of code in both VB.NET and C#, fall squarely in the "I prefer C#, but don't consider VB.NET any less of a language" camp. However, one thing I have noticed is that when it comes to respected and/or widely-used libraries for .NET, everyting is written in C#. Or at least that's been my impression. This strikes me as a little strange because, aside from the abovementioned sprinkling of nice features (in particular the yield keyword), I tend to view the VB.NET/C# divide as primarily a matter of personal taste. Obviously, plenty of developers prefer C#. But I personally know some developers (good ones) who prefer VB.NET, which would lead me to suspect that surely some libraries (good ones) would be written in VB.NET. They must be out there, and I just haven't found them. What are some good libraries that've been written in VB.NET? The best would be open source, as that would allow interested developers to take a look at some good VB.NET code and see how effective the language can be when used properly. But I'd be interested to know about any libraries at all, particularly reputable ones.

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  • Problem adding namespaces to MSXML (using setProperty('SelectionNamespaces', ...))

    - by conciliator
    A while back, I asked a question regarding the usage of namespaces in MSXML. At first, I circumvented the whole thing with the XPath *[local-name()]-hack (see my previous post), but having a crisis of conscience I decided to do things the right way. (Doh!) Consider the following XML: <?xml version="1.0" encoding="UTF-8"?> <Root xsi:schemaLocation="http://www.foo.bar mySchema.xsd" xmlns="http://www.foo.bar" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <MyElement> </MyElement> </Root> When I try to add these namespaces using IXMLDOMDocument3.setProperty('SelectionNamespaces', NSString);, I get the following error: "SelectionNamespaces property value is invalid. Only well-formed xmlns attributes are allowed.". When removing the namespace xsi:schemaLocation="http://www.foo.bar mySchema.xsd", everything runs smoothly. What am I doing wrong here? Is there an error in the XML? Is MSXML to blame?

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  • "The calling thread cannot access this object because a different thread owns it." While using Dispa

    - by Sdry
    I have an application, that I want to load additional xaml files, being resourcedictionaries controling the style of the application. Yet when trying to add a loaded ResourceDictionary to the mergeddictionaries I get an InvalidOperationException saying "The calling thread cannot access this object because a different thread owns it." at a point where I am not even using multiple threads. The application contains a usercontrol which loads the xaml file through a background worker, adding the loaded ResourceDictionaries to an Observablecollection. When I pass on a selected theme(=ResourceDictionary) to a function in the mainwindow of the application, it goes wrong. public void LoadTheme(Theme theme) {//sdry 2010-4-22 if(theme !=null){ this._dispatcher.Invoke(DispatcherPriority.Normal, (Action)(() => { MessageBox.Show("SKIN TEST: " + theme.Name); //> oke #if (SHOWDEBUGINFO) _selectedTheme = theme.Name; //>oke #endif Application.Current.Resources.MergedDictionaries.Clear(); //>oke Application.Current.Resources.MergedDictionaries.Add(theme.ResourceDictionary); //> InvalidOperationException //the theme object has a property named ResourceDictionary of type ResourceDictionary containing the loaded xaml })); } } My first reaction was to use the Disatcher.Invoke, even not knowing how I would not be on the gui thread, which doesn't solve a thing. So maybe my loaded theme belongs to a different thread ? but its originating from a property of a usercontrol, which should be the same thread. And its accesable untill trying to use the ResourceDictionary. This makes me confused, and not very aware of how to proceed, any help is appreciated.

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  • Sharing a session between vBulletin forum and status.net microblogging platform

    - by jaz
    Hello, I need to integrate vBulletin 4.0.3 Publishing Suite with status.net microblogging platform. The first thing I need to do is make these 2 to share 1 session so a user logged in vBulletin forums will also be logged in to status.net and vice versa. I have installed different vBulletin components under different subdomains: forums.sample.com - vBulletin forums blogs.sample.com - vBulletin blogs sample.com - vBulletin content management All of these point to the same place (.../public_html/index.php) which includes the respective php file (content.php for sample.com | blog.php for blogs.sample.com | forum.php for forums.sample.com) depending on the $_SERVER['HTTP_HOST'] I have configured vBulletin to use a single cookie.domain (.sample.com) for all of these 3 domains so visiting different domains doesn't break the session. I also have status.sample.com, which is the subdomain where status.net is installed. The subdomain configuration is different so the document_root is actually a subfolder (.../public_html/status/) in sample.com Now, can you please give me some pointers on how to make all these subdomains share a single session? I'm not sure if it helps, but as I understand, status.net does no custom session handling by default, but it is possible to turn it on so it will start storing session data in a database table called "session". Any tips will be appreciated. Thank you.

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  • Philosophy of [WebInvoke(ResponseFormat = WebMessageFormat.Json)]

    - by Mikey Cee
    Hi everyone, I'm writing what I'm referring to as a POJ (Plain Old JSON) WCF web service - one that takes and emits standard JSON with none of the crap that ASP.NET Ajax likes to add to it. It seems that there are three steps to accomplish this: Change to in the endpoint's tag Decorate the method with [WebInvoke(ResponseFormat = WebMessageFormat.Json)] Add an incantation of [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] to the service contract This is all working OK for me - I can pass in and am being returned nice plain JSON. If I remove the WebInvoke attribute, then I get XML returned instead, so it is certainly doing what it is supposed to do. But it strikes me as odd that the option to specify JSON output appears here and not in the configuration file. Say I wanted to expose my method as an XML endpoint too - how would I do this? Currently the only way I can see would be to have a second method that does exactly the same thing but does not have WebMethodFormat.Json specified. Then rinse and repeat for every method in my service? Yuck. Specifying that the output should be serialized to JSON in the attribute seems to be completely contrary to the philosophy of WCF, where the service is implemented is a transport and encoding agnostic manner, leaving the nasty details of how the data will be moved around to the configuration file. Is there a better way of doing what I want to do? Or are we stuck with this awkward attribute? Or do I not understanding WCF deeply enough?

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  • Want custom title / image / description in facebook share link

    - by Ezop
    Hi! I am making a flash app that demonstrates potensial traffic injuries when driving at different speeds. I want the user to be able to share this information on facebook. However this demands that i can customize the text that will appear on facebook in some manner. I am making an url that is opened in a blank window (from the flash app itself). I specify the u and t parameters, putting the generated message as the t parameter. But this seems to always be overridden by the pages title. If i omit the title tag from the html code, the file name is used (also overriding the specified title). http://www.facebook.com/sharer.php?u=http://espentokerud.com/face/addiste.html&t=test; I also tried url-encoding the url, but to no avail. http://www.facebook.com/sharer.php?u=http%3a%2f%2fespentokerud.com%2fface%2faddiste.html&t=test; I also tried using the addthis API, but experience the same shortcomings. The funny thing is that if i post a swf, the title and description can be customized, and it is also possible to specify a screenshot. But if i dont post a swf, this seems to be ignored. I am aware that I can use meta tags on the html page to specify the thumbnail image, title and description, but some of this content has to be based on calculations inside the flash app. Can anyone help me out or point me in the right direction? I am thankful for any help!

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  • Logging into StackOverflow.com and Meta.StackOverflow.com

    - by Tahir Hassan
    I have recently created a myopenid to log into stack overflow. This login works on stackoverflow.com but NOT on meta.stackoverflow.com. Why is this? This seems like it is a problem on (meta)stackoverflow's side rather than myopenid's side. When I attempt to login to meta.stackoverflow.com using myopenid login, I end up being redirected to a blank page with a very long query string. The url of the blank page is http://www.myopenid.com/server?... Secondly, my google login does not work. When I attempt to login to stackoverflow.com using my google login I end up seeing a blank page with a url beginning with http://stackoverflow.com/users/authenticate/?s... I am using Firefox 3.6.3 and I can successfully login to stackoverflow.com using myopenid but NOT with myopenid onto meta.stackoverflow.com and NOT with google onto stackoverflow.com. Please note that I would prefer to use my google login to login to stackoverflow. I only created myopenid account to get to the root of the problem. Stackoverflow should seriously consider giving users the option of having stackoverflow specific credentials because for me and I am sure countless others this openid thing don't work. (I know this should be posted in meta.stackoverflow.com but this requires a working openid, which I do not have).

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  • resizing row's height in QTreeWidget/QTreeView

    - by serge
    Hi everyone, I have some problems with sizing row's height in QTreeWidget. I use QStyledItemDelegate with QPlainTextEdit. During editing text in QPlainTextEdit i check for changes with a help of: rect = self.blockBoundingRect(self.firstVisibleBlock()) and if text's height changes i resize editor size and need row in QTreeWidget also resizing. But i don't know how to inform TreeWidget or a Delegate about changes. I tried to initialize editor with index, that i could use in a future, but Delegate creates new editor every time and i failed to use signals. Also I used following function to catch resize event, but it' doesn't: bool QAbstractItemDelegate::editorEvent ( QEvent * event, QAbstractItemModel * model, const QStyleOptionViewItem & option, const QModelIndex & index ) How can i bound editor's size changes with TreeWidget? And one more thing, by default all items (cells) in TreeWidget have -1 or some big value as default width. I need whole text in cell to be visible, so how can i limit cells width only by visible range and make it expand in height? I want for it the same behavior as in instance a table in MSWord. Thank you in advance, Serge

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  • Azure - Unable To Get SQL Azure Invitation Code!

    - by Goober
    Scenario I'm trying to convert my Silverlight Business Application over to the cloud with the help of Azure. I have been following this link from Brad Abrams blog. Both the links to Windows Azure and SQL Azure crash out in Google Chrome, they work in Internet Explorer, but it's literally one of the worst user experiences I've ever had. The Problem I'm asked to sign in to Microsoft connect with my Live ID. I do so, I'm then asked to register!? - I do so. I'm then sent a verification email which I verify. I'm then signed out!?!?! When I sign back in, it repeats the process.... ANY IDEAS!??! Edit/Update: Finally managed to get signed up/in to connect. From here I was able to get hold of an invitation code to Windows Azure. Now I need an invitation code for SQL Azure. I cannot see ANYWHERE that advertises a way of getting this SQL Azure code, the only thing that I have seen is some text saying that there "may be a delay" in receiving codes due to volume of interest, which quite frankly I find hard to believe......... It's so far been 3 days now.This officially Sucks! If I have any more news I'll post back here.

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  • how to tackle this combinatorial algorithm problem

    - by Andrew Bullock
    I have N people who must each take T exams. Each exam takes "some" time, e.g. 30 min (no such thing as finishing early). Exams must be performed in front of an examiner. I need to schedule each person to take each exam in front of an examiner within an overall time period, using the minimum number of examiners for the minimum amount of time (i.e. no examiners idle) There are the following restrictions: No person can be in 2 places at once each person must take each exam once noone should be examined by the same examiner twice I realise that an optimal solution is probably NP-Complete, and that I'm probably best off using a genetic algorithm to obtain a best estimate (similar to this? http://stackoverflow.com/questions/184195/seating-plan-software-recommendations-does-such-a-beast-even-exist). I'm comfortable with how genetic algorithms work, what i'm struggling with is how to model the problem programatically such that i CAN manipulate the parameters genetically.. If each exam took the same amount of time, then i'd divide the time period up into these lengths, and simply create a matrix of time slots vs examiners and drop the candidates in. However because the times of each test are not necessarily the same, i'm a bit lost on how to approach this. currently im doing this: make a list of all "tests" which need to take place, between every candidate and exam start with as many examiners as there are tests repeatedly loop over all examiners, for each one: find an unscheduled test which is eligible for the examiner (based on the restrictions) continue until all tests that can be scheduled, are if there are any unscheduled tests, increment the number of examiners and start again. i'm looking for better suggestions on how to approach this, as it feels rather crude currently.

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  • Rails model belongs to model that belongs to model but i want to use another name

    - by Micke
    Hello. This may be a stupid question but im just starting to learn Rail thats why i am asking thsi question. I have one model called "User" which handles all the users in my community. Now i want to add a guestbook to every user. So i created a model called "user_guestbook" and inserted this into the new model: belongs_to :user and this into the user model: has_one :user_guestbook, :as => :guestbook The next thing i did was to add a new model to handle the posts inside the guestbook. I named it "guestbook_posts" and added this code into the new model: belongs_to :user_guestbook And this into the user_guestbook model: has_many :guestbook_posts, :as => :posts What i wanted to achive was to be able to fetch all the posts to a certain user by: @user = User.find(1) puts @user.guestbook.posts But it doesnt work for me. I dont know what i am doing wrong and if there is any easier way to do this please tell me so. Just to note, i have created some migrations for it to as follows: create_user_guestbook: t.integer :user_id create_guestbook_posts: t.integer :guestbook_id t.integer :from_user t.string :post Thanks in advance!

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  • Prolog Family tree

    - by Tania
    Hi I have a Question in prolog , I did it but its not showing answers When i ask about the brothers,sisters,uncles,aunts This is what I wrote, what's wrong ? /*uncle(X, Y) :– male(X), sibling(X, Z), parent(Z, Y).*/ /*uncle(X, Y) :– male(X), spouse(X, W), sibling(W, Z), parent(Z, Y).*/ uncle(X,Y) :- parent(Z,Y), brother(X,Z). aunt(X,Y) :- parent(Z,Y), sister(X,Z). sibling(X, Y) :- parent(Z, X), parent(Z, Y), X \= Y. sister(X, Y) :- sibling(X, Y), female(X). brother(X, Y) :- sibling(X, Y), male(X). parent(Z,Y) :- father(Z,Y). parent(Z,Y) :- mother(Z,Y). grandparent(C,D) :- parent(C,E), parent(E,D). aunt(X, Y) :– female(X), sibling(X, Z), parent(Z, Y). aunt(X, Y) :– female(X), spouse(X, W), sibling(W, Z), parent(Z, Y). male(john). male(bob). male(bill). male(ron). male(jeff). female(mary). female(sue). female(nancy). mother(mary, sue). mother(mary, bill). mother(sue, nancy). mother(sue, jeff). mother(jane, ron). father(john, sue). father(john, bill). father(bob, nancy). father(bob, jeff). father(bill, ron). sibling(bob,bill). sibling(sue,bill). sibling(nancy,jeff). sibling(nancy,ron). sibling(jell,ron). And one more thing, how do I optimize the rule of the brother so that X is not brother to itself.

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  • Writing a Javascript library that is code-completion and code-inspection friendly

    - by Vivin Paliath
    I recently made my own Javascript library and I initially used the following pattern: var myLibrary = (function () { var someProp = "..."; function someFunc() { ... } function someFunc2() { ... } return { func: someFunc, fun2: someFunc2, prop: someProp; } }()); The problem with this is that I can't really use code completion because the IDE doesn't know about the properties that the function literal is returning (I'm using IntelliJ IDEA 9 by the way). I've looked at jQuery code and tried to do this: (function(window, undefined) { var myLibrary = (function () { var someProp = "..."; function someFunc() { ... } function someFunc2() { ... } return { func: someFunc, fun2: someFunc2, prop: someProp; } }()); window.myLibrary = myLibrary; }(window)); I tried this, but now I have a different problem. The IDE doesn't really pick up on myLibrary either. The way I'm solving the problem now is this way: var myLibrary = { func: function() { }, func2: function() { }, prop: "" }; myLibrary = (function () { var someProp = "..."; function someFunc() { ... } function someFunc2() { ... } return { func: someFunc, fun2: someFunc2, prop: someProp; } }()); But that seems kinda clunky, and I can't exactly figure out how jQuery is doing it. Another question I have is how to handle functions with arbitrary numbers of parameters. For example, jQuery.bind can take 2 or 3 parameters, and the IDE doesn't seem to complain. I tried to do the same thing with my library, where a function could take 0 arguments or 1 argument. However, the IDE complains and warns that the correct number of parameters aren't being sent in. How do I handle this?

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  • Is make -j distcc possible to scale over 5 times?

    - by holmes
    Since distcc cannot keep states and just possible to send jobs and headers and let those servers to use only the data just sent and preprocess and compile, I think the lastest distcc has problem in scalability. In my local build environment which has appx. 10,000 c/c++ files to build, I could only make 2 times faster than not using distcc (but using make -j) when having 20 build servers. What do you think is the problem? If anyone has achieved scalability more than 10 - 20 times using make -j and distcc, please let me know. The following product claims that it is impossible to scale make -j and distcc faster than 5 times. http://www.electric-cloud.com/products/electricaccelerator.php I think this can be improved by: Letting the distccd server to maintain sessions Tied to those sessions, they will cache their own header directories Preprocess will be done demand base from the distccd server This will be done through a LD_PRELOADed library libdistcc.so which will replace stat/open syscalls and fetches the header files over network. ... Has anyone done this kind of thing?

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  • In Asp.Net MVC 2 is there a better way to return 401 status codes without getting an auth redirect

    - by Greg Roberts
    I have a portion of my site that has a lightweight xml/json REST API. Most of my site is behind forms auth but only some of my API actions require authentication. I have a custom AuthorizeAttribute for my API that I use to check for certain permissions and when it fails it results in a 401. All is good, except since I'm using forms auth, Asp.net conveniently converts that into a 302 redirect to my login page. I've seen some previous questions that seem a bit hackish to either return a 403 instead or to put some logic in the global.asax protected void Application_EndRequest() that will essentially convert 302 to 401 where it meets whatever criteria. Previous Question Previous Question 2 What I'm doing now is sort of like one of the questions, but instead of checking the Application_EndRequest() for a 302 I make my authorize attribute return 666 which indicates to me that I need to set this to a 401. Here is my code: protected void Application_EndRequest() { if (Context.Response.StatusCode == MyAuthAttribute.AUTHORIZATION_FAILED_STATUS) { //check for 666 - status code of hidden 401 Context.Response.StatusCode = 401; } } Even though this works, my question is there something in Asp.net MVC 2 that would prevent me from having to do this? Or, in general is there a better way? I would think this would come up a lot for anyone doing REST api's or just people that do ajax requests in their controllers. The last thing you want is to do a request and get the content of a login page instead of json.

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  • Model validation with enumerable properties in Asp.net MVC2 RTM

    - by Robert Koritnik
    I'm using DataAnnotations attributes to validate my model objects. My model class looks similar to this: public class MyModel { [Required] public string Title { get; set; } [Required] public List<User> Editors { get; set; } } public class User { public int Id { get; set; } [Required] public string FullName { get; set; } [Required] [DataType(DataType.Email)] public string Email { get; set; } } My controller action looks like: public ActionResult NewItem(MyModel data) { //... } User is presented with a view that has a form with: a text box with dummy name where users enter user's names. For each user they enter, there's a client script coupled with ajax that creates an <input type="hidden" name="data.Editors[0].Id" value="userId" /> for each user entered (enumeration index is therefore not always 0 as written here), so default model binder is able to consume and bind the form without any problems. a text box where users enter the title Since I'm using Asp.net MVC 2 RTM which does model validation instead of input validation I don't know how to avoid validation errors. The thing is I have to use BindAttribute on my controller action. I would have to either provide a white or a black list of properties. It's always a better practice to provide a white list. It's also more future proof. The problem My form works fine, but I get validation errors about user's FullName and Email properties since they are not provided. I also shouldn't feed them to the client (via ajax when user enters user data), because email is personal contact data and is not shared between users. If there was just a single user reference on MyModel I would write [Bind(Include = "Title, Editor.Id")] But I have an enumeration of them. How do I provide Bind white list to work with my model?

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  • Merge method in MergeSort Algorithm .

    - by Tony
    I've seen many mergeSort implementations .Here is the version in Data Structures and Algorithms in Java (2nd Edition) by Robert Lafore : private void recMergeSort(long[] workSpace, int lowerBound,int upperBound) { if(lowerBound == upperBound) // if range is 1, return; // no use sorting else { // find midpoint int mid = (lowerBound+upperBound) / 2; // sort low half recMergeSort(workSpace, lowerBound, mid); // sort high half recMergeSort(workSpace, mid+1, upperBound); // merge them merge(workSpace, lowerBound, mid+1, upperBound); } // end else } // end recMergeSort() private void merge(long[] workSpace, int lowPtr, int highPtr, int upperBound) { int j = 0; // workspace index int lowerBound = lowPtr; int mid = highPtr-1; int n = upperBound-lowerBound+1; // # of items while(lowPtr <= mid && highPtr <= upperBound) if( theArray[lowPtr] < theArray[highPtr] ) workSpace[j++] = theArray[lowPtr++]; else workSpace[j++] = theArray[highPtr++]; while(lowPtr <= mid) workSpace[j++] = theArray[lowPtr++]; while(highPtr <= upperBound) workSpace[j++] = theArray[highPtr++]; for(j=0; j<n; j++) theArray[lowerBound+j] = workSpace[j]; } // end merge() One interesting thing about merge method is that , almost all the implementations didn't pass the lowerBound parameter to merge method . lowerBound is calculated in the merge . This is strange , since lowerPtr = mid + 1 ; lowerBound = lowerPtr -1 ; that means lowerBound = mid ; Why the author didn't pass mid to merge like merge(workSpace, lowerBound,mid, mid+1, upperBound); ? I think there must be a reason , otherwise I can't understand why an algorithm older than half a center ,and have all coincident in the such little detail.

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  • Problem with ScriptManager.RegisterStartupScript in WebControl nested in UpdatePanel

    - by Chris
    Hello, I am having what I believe should be a fairly simple problem, but for the life of me I cannot see my problem. The problem is related to ScriptManager.RegisterStartupScript, something I have used many times before. The scenario I have is that I have a custom web control that has been inserted into a page. The control (and one or two others) are nested inside an UpdatePanel. They are inserted onto the page onto a PlaceHolder: <asp:UpdatePanel ID="pnlAjax" runat="server"> <ContentTemplate> <asp:PlaceHolder ID="placeholder" runat="server"> </asp:PlaceHolder> ... protected override void OnInit(EventArgs e){ placeholder.Controls.Add(Factory.CreateControl()); base.OnInit(e); } This is the only update panel on the page. The control requires some initial javascript be run for it to work correctly. The control calls: ScriptManager.RegisterStartupScript(this, GetType(), Guid.NewGuid().ToString(), script, true); and I have also tried: ScriptManager.RegisterStartupScript(Page, Page.GetType(), Guid.NewGuid().ToString(), script, true); The problem is that the script runs correctly when the page is first displayed, but does not re-run after a partial postback. I have tried the following: Calling RegisterStartupScript from CreateChildControls Calling RegisterStartupScript from OnLoad / OnPreRender Using different combinations of parameters for the first two parameters (in the example above the Control is Page and Type is GetType(), but I have tried using the control itself, etc). I have tried using persistent and new ids (not that I believe this should have a major impact either way). I have used a few breakpoints and so have verified that the Register line is being called correctly. The only thing I have not tried is using the UpdatePanel itself as the Control and Type, as I do not believe the control should be aware of the update panel (and in any case there does not seem to be a good way of getting the update panel?). Can anyone see what I might be doing wrong in the above? Thanks :)

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  • Spring MVC jQuery remote validation

    - by raulsan
    Hi, I am using Spring MVC on the server side, but in one of the pages I decided to create an AJAX validation with jQuery rather than the default Spring validation. Everything works great, except when I have to do a remote validation to check if a "title" already exists. For the javascript I have the following: var validator = $("form").validate({ rules: { title: { minlength: 6, required: true, remote: { url: location.href.substring(0,location.href.lastIndexOf('/'))+"/checkLocalArticleTitle.do", type: "GET" } }, html: { minlength: 50, required: true } }, messages: { title: { required: "A title is required.", remote: "This title already exists." } } }); Then, I use Spring-Json to make this validation and give a response: @RequestMapping("/checkLocalArticleTitle.do") public ModelAndView checkLocalArticleTitle(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Map model = new HashMap(); String result = "FALSE"; try{ String title = request.getParameter("title"); if(!EJBRequester.articleExists(title)){ result = "TRUE"; } }catch(Exception e){ System.err.println("Exception: " + e.getMessage()); } model.put("result",result); return new ModelAndView("jsonView", model); } However, this does not work and the field "title" is never validated. I think the reason for this is that I am returning an answer in the manner: {result:"TRUE"} when in fact, the answer should be: {"TRUE"} I don't know how to return a single response like this one using a ModelAndView answer. Another thing that is not working is the customized message for the "remote" validation: messages: { title: { required: "A title is required.", remote: "This title already exists." } }, The required message works, but not the remote message. I looked around, but I didn't see many people using Spring and jQuery at the same time. I would appreciate some help here.

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